Retry-safe webhook ingestion with PostgreSQL: duplicates, concurrent requests and old snapshots

This is a synthetic laboratory example, not a customer production incident. AI assisted with drafting and checking the material. A webhook sender cannot always tell whether a delivery worked. The receiver may commit a database transaction and lose the connection before returning a response. A retry then arrives for work that is already complete.... Weiterlesen: Retry-safe webhook ingestion with PostgreSQL: duplicates, concurrent …